19752294427 has 2 divisors, whose sum is σ = 19752294428. Its totient is φ = 19752294426.

The previous prime is 19752294389. The next prime is 19752294431. The reversal of 19752294427 is 72449225791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19752294427 - 2¹⁹ = 19751770139 is a prime.

It is not a weakly prime, because it can be changed into another prime (19752204427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9876147213 + 9876147214.

It is an arithmetic number, because the mean of its divisors is an integer number (9876147214).

Almost surely, 2^19752294427 is an apocalyptic number.

19752294427 is a deficient number, since it is larger than the sum of its proper divisors (1).

19752294427 is an equidigital number, since it uses as much as digits as its factorization.

19752294427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 52.

The spelling of 19752294427 in words is "nineteen billion, seven hundred fifty-two million, two hundred ninety-four thousand, four hundred twenty-seven".